BRPI1005134A2 - three-dimensional image data transfer method [3d], 3d generation device for transferring three-dimensional image data [3d] to a 3d display device and 3d display signal - Google Patents

Abstract

three-dimensional image data transfer method [3d], 3d generation device for transferring three-dimensional image data [3d] to a 3d display device and 3d display signal an image data transfer system is described three-dimensional (3d). a 3d generation device (10) provides a 3d display signal (56) for a display (13) by means of a high-speed digital interface, for example, hdmi. the 3D display signal comprises a sequence of frames. the frame sequence comprises units, each unit corresponding to frames that comprise video information that must be composed and displayed as a 3d image. the 3d generation device includes 3d transfer information comprising at least information about the number of video frames in the unit to be composed. the display detects the 3d transfer information and generates the display control signals depending on the 3d transfer information. the 3d transfer information in an additional information frame package comprises information about the multiplexing scheme for multiplexing frames in the 3d display signal, the multiplexing scheme being selected from the group of multiplexing schemes including switching multiplexing frames, alternating frames indicating said number of frames being sequentially arranged within said period of video data.

Description

THREE-DIMENSIONAL DATA TRANSFER METHOD --- [GD] T 3D GENERATION DEVICE FOR THREE-DIMENSIONAL IMAGE DATA TRANSFER [3D] TO A 3D DISPLAY DEVICE AND 3D DISPLAY SIGN

FIELD OF THE INVENTION

The invention relates to a method of transmitting a 3D display signal for transferring three-dimensional image data [3D] to a 3D display device, the 3D display signal comprising a sequence of frames that constitute the data 3D image according to a 3D video transfer format.

The sequence of frames comprising units, each unit corresponding to frames that comprise video information that must be composed and displayed as a 3D image.

The invention further relates to the aforementioned 3D generation device, the 3D display signal and the 3D display device.

The invention relates to the transfer field, by means of a high-speed digital interface, for example, HDMI, three-dimensional image data, for example, 3D video, for display on a 3D display device.

HISTORY OF THE INVENTION

Devices for generating 2D video data are known, for example, video players such as DVD players or set top boxes that generate digital video signals. The generation device must be coupled to a display device such as a TV set or monitor. The image data is transferred from the generation device through a suitable interface, preferably a high-speed digital interface, such as HDMI. Enhanced 3D devices are currently being proposed for the generation of three-dimensional (3D) image data. Similarly,

2/40 devices for displaying ~ 3D image data are being proposed. To transfer 3D video signals from the generation device to the display device, new high data rate digital interface standards are being developed, for example, based on and compatible with the current HDMI standard. Transferring digital 2D image signals to the display device usually involves sending video pixel data frame by frame, which frames must be displayed sequentially. These frames can either represent video frames of a progressive video signal (whole frames) or they can represent video frames of an interconnected video signal (based on the well-known line interconnection, where one frame provides the odd lines and the next table provides even lines to be displayed sequentially).

US 4,979,033 describes an example of a traditional video signal that has an interconnected format. The traditional signal includes horizontal and vertical synchronization signals to display the lines and frames of the odd and even frames on a traditional television. Stereoscopic video system and method are proposed that allow stereoscopic video synchronization with a viewfinder that uses shutter glasses. The odd and even frames are used to transfer the respective left and right images of a stereoscopic video signal. The proposed 3D display device comprises a traditional envelope detector to detect traditional odd / even frames, but generates display signals for left and right LCD display units. In particular, equalization pulses that occur during the empty vertical gap, which differs for odd and even frames in the traditional interconnected video analog signal,

3/40 are counted to identify the respective left or right field ·; CT ”s'Ístemã uses this information to synchronize a pair of blinds so that these glasses alternately open and close in sync with the stereo video.

There are several different ways in which stereo images can be formatted, called a 3D image format. Some formats are based on using a 2D channel to also contain stereo information. For example, the left and right view can be linked or placed side by side and above and below. These methods sacrifice resolution to contain stereo information. Another option is to sacrifice color, an approach called anaglyphic stereo.

New formats for transmitting 3D information to a display are being developed. The MVD, as it is being standardized in MPEG calls for transmission {Video + Depth} for M visualizations, to allow greater layers of visualization cone graphics (for example, menus or subtitles in BED-players or STBs) needs to be transmitted to the display.

SUMMARY OF THE INVENTION

It is an objective of the invention to provide a more flexible and reliable system for transferring 3D video signals to a display device.

For this purpose, according to a first aspect of the invention, in the method as described in the opening paragraph, the 3D video format comprising a period of video data during which active video pixels are transmitted and an island period of data during which audio and auxiliary data are transmitted using a series of packets, .packages including a frame, information packet, and sending the

4/40 3D display; and, on a 3D display device, _a

--- reeepçrãro ^- the ^- siríãl ^- of 3D display, and processing of the 3D display signal to generate display control signals to render the 3D image data in a 3D display, the sequence of frames comprising units, the unit being a period from a vertical sync signal to the next vertical sync signal, each unit corresponds to a number of frames arranged according to a multiplexing scheme, the number of frames comprising 10 video information for video information that must be composed and displayed as a 3D image; each frame in the unit has a 'data structure to represent a sequence of digital image pixel data, and each type of frame represents a partial 3D data structure, and where the method comprises, in the 3D generation device, including the 3D transfer information in an additional information frame package, the 3D transfer information comprising at least information about the multiplexing scheme including the number of 20 video frames in a unit to be composed into a single 3D image on the 3D display, the multiplexing scheme being selected from the group of multiplexing schemes comprising at least the frame switching multiplexing, the frame switching indicating said number of 25 frames being sequentially arranged within said video data period; and said generation of the display control signals is carried out depending on the 3D transfer information.

For this purpose, according to a second aspect of the invention, the 3D generating device for transferring 3D image data to a 3D display device as described in the opening paragraph, the 3D generating device comprising means generation

5/40 for the processing of original image data to generate __a 3D display signal, __ o__s.inal. ..de__view — in — 3-D comprising a sequence of frames that make up the 3D image data according to a 3D video transfer format, the 3D video format comprising a period of video data during which active video pixels are transmitted and a data island period during which audio and auxiliary data are transmitted using a series of packets, the packets including an information board pack, and output interface means for sending the 3D display, each frame has a data structure to represent a sequence of digital image pixel data, and each type of frame represents a partial 3D data structure, the sequence of frames comprising units, the unit being a period from one vertical sync signal until the next vertical sync signal, each unit corresponding to a number of frames arranged according to a multiplex scheme tion, the number of frames comprising video information for video information that must be composed and displayed as a 3D image; where the output interface means is adapted to transmit 3D transfer information in an additional information frame package, the 3D transfer information comprising at least information about the multiplexing scheme - including the number of video frames in “one unit 'to be composed in a single 3D image in the 3D display signal, the multiplexing scheme being selected from the group of multiplexing schemes comprising at least the frame switching multiplexing, the frame switching indicating the said number of frames being sequentially arranged within said video data period; to generate signals from the display device

6/40 display control depending on 3D transfer information .__________________

For this purpose, according to another aspect of the invention, the 3D display device data as described in the opening paragraph, comprises a 3D display for displaying 3D image data, input interface means for receiving a display signal in 3D, the 3D display signal comprising frames that constitute the 3D image data according to a 3D video transfer format, the 3D video format comprising a period of video data during which active video pixels are transmitted and a data island period during which audio and auxiliary data are transmitted using a series of packets, the packets including an information board pack, and processing means to generate display control signals to render the data from 3D image on the 3D display, each frame has a data structure to represent a sequence of digital image pixel data, and each type of frame represents a partial 3D data structure, and the frame sequence comprising units, the unit being a period from a vertical sync signal to the next vertical sync signal, each unit corresponding to a number of frames arranged according to a scheme of multiplexing, the number of frames that comprise for video information that must be composed and displayed as a 3D image; where the 3D transfer information in an additional information frame package, comprises at least information about the multiplexing scheme including the number of video frames in a unit to be composed into a single 3D image in the 3D display signal, the multiplexing scheme being selected from the group of multiplexing schemes comprising at least multiplexing of

7/40 alternating frames, alternating frames indicating said number of frames_ being sequentially arranged within - of said period of video data; and the processing means are arranged to generate the display control signals depending on the 3D transfer information.

The invention is also based on the following recognition. Unlike 2D video information, there are many possibilities for formatting 3D video data, for example stereoscopic, image + depth, possibly including occlusion and transparency, multiple views. In addition, it is imagined that multiple layers of 3D video data can be transmitted in a compositing interface before display. This variety of option leads to many video format options, depending on the data format available on the generation device and the 3D video format accepted by the display. Most of these formats are characterized by a large volume of information, a complex structure needs to be transmitted for each 3D image to be displayed. According to the invention, when data is sent in units, and information about the units is available on the 3D display signal, the transmission system is more flexible when working with various 3D data formats, as more data can be included in one unit. Modern high-speed interfaces allow frames to be sent at a frequency that is much higher than the actual 3D image frequency, usually 24 Hz as used by the film industry. When using frame units, a larger volume of data, in a flexible format, for each 3D image can be sent on the interface.

In one configuration, the group of multiplexing schemes further comprises at least one field alternating multiplexing; line switching multiplexing;

8/40 frame-to-side multiplexing, _ frame-to-side multiplexing to _lado_.indi-cando— o__di to_number — of-frames — being ~ arranged side by side within said video data period; 2D frame and depth multiplexing; 2D, depth, graphics and depth and graph frame multiplexing.

In general, the transmission of 3D video data can be characterized by 3 parameters:

- pixel repetition rate

- number of frames in a frame unit of a single 3D image

- the format: multiplexing of channels

In a preferred embodiment of the invention, information about all these parameters is included in the 3D transfer information. For maximum flexibility, according to the invention, these must be transmitted in three separate fields.

In a configuration of the invention, HDMI is used as an interface, and the 3D transfer information is sent in AVI information frames and / or Supplier Specific HDMI information frames. In the most preferred configuration, which allows maximum flexibility, the 3D transfer information is sent in a separate information frame.

Other preferred configurations of the method, 3D devices and signal 'according to the invention are shown in the appended claims, the disclosure of which is hereby incorporated by reference.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other aspects of the invention will be evident and further clarified with reference to the configurations described by way of example in the following description and with reference to the accompanying drawings, in which:

9/40

Figure 1 shows a system for transferring three-dimensional image data ionaC3D _) _; ___________

Figure 2 shows an example of 3D image data;

Figure 3 shows a playback device and ONE display combination device;

Figure 4 shows schematically possible units of frames to be sent on the video interface for 3D image data corresponding to 2D + Stereo + DOT;

Figure 5 shows schematically other details of possible frame units to be sent on the video interface for 3D image data corresponding to 2D + Stereo + DOT;

Figure 6 shows schematically the time output of frames in the video interface for 3D image data corresponding to 2D + Stereo + DOT;

Figure 7 shows schematically possible frame layout units for a stereo signal;

Figure 8 shows horizontal and vertical gaps and signaling for a 3D + DOT format at 1920 pixels;

Figure 9 shows horizontal and vertical gaps and signaling for a 3D + DOT format of 720 pixels sent as 1920 progressive at 30 Hz;

Figure 10 shows a table of an extended AVI information board with a type of frame synchronization indicator for stereo 3D image data;

THE Figure 11 shows a Table in video formats in 3D; THE Figure 12 shows a sign in synchronization painting, and THE Figure 13 shows values in video layers

additional.

In the figures, the elements that correspond to the elements already described have the same numbers of

10/40 reference.

DETAILED DESCRIPTION OF CONFIGURATIONS

Figure 1 shows a system for transferring three-dimensional (3D) image data, for example, video, graphics or other visual information. A 3D generation device 10 is coupled to a 3D display device 13 to transfer a 3D display signal 56. The 3D generation device has an input unit 51 for receiving image information. For example, an input drive device may include an optical disc drive 58 to retrieve various types of image information from an optical record holder 54 such as a DVD or BluRay disc. Alternatively, the input unit may include a network interface unit 59 for coupling to a network 55, for example, the internet or a transmission network, this device being generally called a set-top box. The image data can be retrieved from a remote media server 57. The generation device can also be a satellite receiver or a media server that directly sends the display signals, that is, any suitable device that sends a signal. 3D display to be directly coupled to a display unit.

The 3D generation device has a processing unit 52 coupled to the input unit 51 to process the image information for generating a 3D display signal 56 to be transferred via an output interface unit 12 to the device display. The processing unit 52 is arranged to generate the image data included in the 3D display signal 56 for display on the display device 13. The generating device is provided with user control elements 15 to control the display parameters of the image data, such as, contrast or color parameter. These elements of

11/40 user controls are well known and may include a _tem_ remote control unit — various buttons — and- / or — cursor control functions to control the various functions of the 3D generation device, for example, the playback and recording functions, and to define said display parameters, for example, through a graphical user interface and / or menus.

The generation device has a transmission synchronization unit 11 to provide at least one frame type synchronization indicator in the 3D display signal, which indicator is included in the 3D display signal in the output interface unit 12, which is further arranged to transfer the 3D display signal with the image data and frame type synchronization indicators from the generation device to the display device as the 3D display signal 56. The 3D display signal comprises a sequence of frames organized in groups of frames, thus constituting the 3D image data according to a 3D video transfer format, in which the frames comprise at least two different types of frame. Each frame has a data structure to represent a sequence of digital image pixel data, generally arranged as a sequence of horizontal lines of a number of pixels according to a predetermined resolution. Each frame type represents a partial 3D data structure. For example, the partial 3D data structures in the 3D video transfer format frame types can be left and right images or a 2D image and additional depth and / or other 3D data, such as occlusion or transparency information as discussed. below. Note that the frame type can also be a combination frame type indicative of a combination of sub frames of the

12/40 frame types above, for example, 4 subframes that have a lower resolution located in a single frame of maximum resolution. Also, several images of multiple views can be encoded in the video transmission of frames to be displayed simultaneously.

The generation device is adapted to include 3D transfer information comprising at least information about the number of video frames in a unit to be composed into a single 3D image in the 3D display signal. This can be done by adding the corresponding functionality to the synchronization unit 11.

The 3D display device 13 serves to display 3D image data. The device has an input interface unit 14 for receiving 3D display signal 56 including 3D image data in frames and the frame type synchronization indicator transferred from the generation device 10. Each frame has a structure of data to represent a sequence of digital image pixel data, and each frame type represents a partial 3D data structure. The display device is provided with other user control elements 16 for defining the display parameters of the display, for example, contrast, color or depth parameters. The transferred image data is processed in the processing unit 18 according to the definition commands from the user control elements - and generation of display control signals to display the 3D image data on the 3D display based on the different frame types. The device has a 3D display 17 that receives the display control signals to display the processed image data, for example, a double LCD. Display device 13 is a stereoscopic display, also called 3D display, which has a range of display depth indicated

13/40 by the arrow 44. The display of 3D image data is performed depending on the different __frames, each providing a respective structure of partial 3D image data.

The display device further includes a detection unit 19 coupled to the processing unit 18 to retrieve the frame type synchronization indicator from the 3D display signal and to detect the different types of frame in the received 3D display signal. The processing unit 18 is arranged to generate 10 display control signals based on the various types of image data as defined by the partial 3D data structures of the respective 3D video format, for example, a 2D image and a frame depth. The respective frames are recognized and synchronized in time 15 as indicated by the respective frame type synchronization indicators.

display device is adapted to detect 3D transfer information comprising at least information about the number of video frames in a unit 20 to be composed into a single 3D image in the 3D display signal; and to use the 3D transfer information to generate the display control signals depending on the 3D transfer information. This can be accomplished, for example, by adapting the detection unit 19 to detect the 3D transfer information and adapting the processing means (18) to generate the display control signals depending on the 3D transfer information.

The frame type synchronization indicators allow the detection of which frames must be combined for display at the same time and also indicate the type of frame so that the respective partial 3D data can be retrieved and processed. The 3D display signal can be transferred on a suitable digital video interface.

14/40 high speed, for example, the well-known HDMI _ interface (see, __ for example, High_De.fjLni.ti.on__Muitimedia -Interface ------- Specification Version 1.3a of November 10, 2006).

Figure 1 further shows a record holder 54 as a holder of the 3D image data. The record holder is disk-shaped and has a track and a central hole. The trail, consisting of a series of physically detectable marks, is arranged according to a spiral or concentric pattern of turns that constitute 10 substantially parallel trails in a layer of information. The record holder can be optically readable, called an optical disc, for example, a CD, DVD or BD (Blue-ray Disc). The information is represented in the information layer by the optically detectable marks along the trail, for example, pits and lands. The track structure also includes position information, for example, headers and addresses, to indicate the location of information units, generally called information blocks. The record holder 54 bears information that 20 represents digitally encoded image data, such as video, for example, encoded according to the MPEG2 or MPEG4 encoding system, in a predefined recording format such as the DVD or BD format.

It is noted that a player can support several 25 playback formats, but cannot transcode video formats, and a display device may be able to play a limited set of video formats. This means that there is a common divider of what can be reproduced. Note that, depending on the disc or the content, the format may change during playback / operation of the system. The real-time synchronization of the format needs to happen and the change of formats in real time is provided by the frame type synchronization indicator.

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The following section presents an overview of tlTidime n s bnãrs displays and the perception of depth by humans. 3D displays differ from 2D displays in that they can provide a more vivid perception of depth. This is achieved because they offer more depth indication signals than 2D displays which can show only monocular depth indication signals and movement based indication signals.

Monocular (or static) depth indication signals can be obtained from a static image using a single eye. Painters often use monocular indication signs to create a sense of depth in their paintings. These telltale signs include relative size, height relative to the horizon, occlusion, perspective, texture gradients and lighting / shadows. The oculomotor indication signals are depth indication signals derived from the tension in the eye muscles of the spectators. The eyes have muscles to perform eye rotation, as well as expand the lens. Stretching and relaxing the lens is called accommodation and is done when you focus on an image. The amount of stretching or relaxation of the lens muscles provides an indication of how close or far an object is. Eye rotation is done so that both focus on the same object, which is called convergence. Finally, the parallax of movement is the effect that objects close to a viewer appear to move faster than objects farther away.

Binocular disparity is a telltale sign of depth derived from the fact that both of our eyes see a slightly different image. Monocular depth indication signals can be and are used in any type of 2D visual display. For

16/40 to recreate binocular disparity in a viewfinder, the viewer is required to be able to segment the view into the right left eye so that each sees a slightly different image on the viewfinder. The displays that can recreate binocular disparity are special displays that will be called 3D displays or stereoscopic displays. 3D displays are capable of displaying images over a depth dimension actually perceived by human eyes, called the 3D display which has a range of display range in this document. Therefore, 3D viewers provide a different view for the left and right eyes.

3D displays that can provide two different views have been known for a long time. Most of them were based on the use of glasses to separate the visualization of the left eye and the right eye. Today, with the advancement of display technology, new displays have entered the market that can provide stereo viewing without glasses. These displays are called auto-stereoscopic displays.

A first approach is based on LCD displays that allow the user to view stereo video without glasses. These are based on one of two techniques, the lenticular screen and the barrier displays. With the lenticular display, the LCD is covered with a layer of lenticular lenses. These lenses cause light to diffract from the viewfinder, so that the left eye and the right eye receive light from different pixels. This allows for two different images, a preview for the left eye and a preview for the right eye.

An alternative to the lenticular screen is the barrier display, which uses a parallax barrier behind the LCD and in front of the backlight to separate the light from the pixels on the LCD. The barrier is such that, from a defined position in front of the screen, the left eye sees different pixels

17/40 of those seen by the right eye. The barrier can also be between the 6th LCD and the “human view”, so that the 6th pixels in a row of the display are alternately visible through the left and right eyes. A problem with the barrier display is the loss of brightness and resolution, but also a very narrow viewing angle. This makes it less attractive as a living room TV compared to the lenticular screen, which, for example, has 9 views and multiple viewing zones.

Another approach is still based on the use of blinds in combination with high-resolution projectors that can display frames at a high refresh rate (for example, 120 Hz). The high refresh rate is necessary because, with the blinds method, the left and right eye views are alternately displayed. The spectator who wears the glasses perceives the stereo video at 60 Hz. The method of the blinds glasses allows a high quality video and a high level of depth.

Both auto-stereoscopic viewers and the blinds method present the problem of disparity in the convergence of accommodation. This limits the amount of depth and viewing time that can be comfortable using these devices. There are other display technologies, for example, holographic and volumetric displays, which do not present this problem. It is noted that the present invention can be used for any type of 3D display that has a depth variation.

It is assumed that image data from 3D displays is available as electronic data, usually digital. The present invention relates to this image data and manipulates the image data in the digital domain. The image data, when transferred from a source, can already contain 3D information, for example, using cameras

18/40 doubles, or a dedicated pre-processing system can be involved — to— (re-) create — the — 3D information — from — from. 2D images. The image data can be slides of the static type or can include movies of the moving video type. Other image data, usually called graphic data, may be available as stored objects or generated on the fly as required by an application. For example, user control information, such as menus, navigation items or text and help annotations, can be added to other image data.

There are several different ways in which stereo images can be formatted, called a 3D image format. Some formats are based on using a 2D channel to also contain stereo information. For example, the left and right view can be linked or placed side by side and above and below. These methods sacrifice resolution to contain stereo information. Another option is to sacrifice color, an approach called anaglyphic stereo. Anaglyph stereo uses spectral multiplexing which is based on the display of two separate images covered in complementary colors. When wearing glasses with colored filters, each eye only sees the image of the same color as that of the filter in front of the eye. So, for example, the right eye only sees the red image and the left eye only the green image.

A different 3D format is based on the two views using a 2D image and an additional depth image, a so-called depth map, which transits information about the depth of objects in the 2D image. The format called image + depth is different in that it is a combination of a 2D image with the so-called depth, or

19/40 disparity. This is a gray scale image, by means of which 1 the gray value ~ of ~ a ~ p ixel-indicates when: age of disparity (or depth in the case of a depth map) for the corresponding pixel in the associated 2D image. The display device uses the disparity, depth or parallax map to calculate additional views using the 2D image as an input. This can be done in several ways. In the simplest form, it is a matter of moving pixels left or right depending on the disparity value associated with those pixels. The article entitled depth-based rendering, compression and transmission for a new approach to 3D TV by Christoph Fen provides an excellent overview of the technology (see http://iphome.hhi.de/fehn/Publications/fehn_EI2004.pdf) .

Figure 2 shows an example of 3D image data. The left part of the image data is a 2D image 21, generally colored, and the right part of the image data is a depth map 22. The 2D image information can be represented in any suitable image format. The depth map information can be an additional data stream that has a depth value for each pixel, possibly at a reduced resolution compared to the 2D image. In the depth map, the gray scale values indicate the depth of the associated pixel in the 2D image. The white color indicates proximity to the viewer and the black color indicates a great depth away from the viewer. A 3D display can calculate the additional visualization required for stereo using the depth value of the depth map and calculating the necessary pixel transformations. Occlusions can be resolved using calculation or filling techniques. Additional tables can be included in the

20/40 data transmission, that is, added to the image and the form ^- dé “mãpa ~ de ' ^_ depth -; - as —a occlusion map., .. a parallax map and / or a transparency map for transparent objects that move in front of a background.

The addition of stereo to the video also influences the format of the video when it is sent from a player, for example, a Blu-ray disc player, to a stereo display. In the case of 2D, only a 2D video transmission is sent (image data decoded). With stereo video, this increases because a second transmission must now be sent containing the second view (for stereo) or a depth map. This could double the required bit rate on the electrical interface. A different approach is to sacrifice the resolution and format of the broadcast so that the second view or depth map is interconnected or placed side by side with the 2D video.

Figure 2 shows an example of 2D data and a depth map. The depth display parameters that are sent to the display to allow it to correctly interpret the depth information. Examples of including additional video information are described in the ISO 23002-3 standard. Representation of auxiliary video and supplementary information (see, for example, ISO / IEC JTC1 / SC29 / WG11 N8259 July 2007). Depending on the type of auxiliary transmission, the additional image data consists of four or two parameters. The frame type synchronization indicator may comprise a 3D video format indicator indicative of the respective 3D video transfer format in a subsequent section of the 3D display signal. This allows you to indicate or change the 3D video transfer format or to reset the transfer sequence or to set or reset other synchronization parameters.

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In one configuration, the frame type synchronization indicator ^- includes “u ^ in ^ itrator” of — sequence-of-frame indicating the frequency of at least one frame type. Note that some frame types allow for a lower transmission frequency without substantial deterioration of the perceived 3D image, for example, the occlusion data. In addition, an order of the different types of frames can be indicated as a sequence of different types of frames to be repeated.

In one configuration, the frame type synchronization indicator and 3D transfer information includes a frame sequence number. Individual frames can also be provided with the frame sequence number. The sequence number is increased ¹ regularly, for example, when all the frames that make up a single 3D image have been sent and the following frames belong to the next 3D image. Therefore, the number is different for each synchronization cycle or can change only for a larger section. Therefore, when there is a jump, the set of frames that has the same sequence number must be transferred before the image display can be resumed. The display device will detect the offset frame sequence number and will only match a complete set of frames. This prevents the wrong combination of frames from being used after jumping to a new location.

When adding graphics to the video, other separate data streams can be used to cover additional layers in the display unit. This layer data is included in different frame types, which are separately marked by the addition of respective frame type synchronization indicators in the 3D display signal as discussed in detail below. The format of

22/40 3D video transfer now comprises a main video and at least one additional video clip. transferred by means of respective frame types and the frame type synchronization indicator comprises at least one of a main frame type indicator and an additional layer frame type indicator. The additional video layer can _t for example, be subtitles or other graphical information such as a menu or any other data on screen display (OSD).

A possible format of the frame units will be described with reference to Figures 4 to 7. This format has also been described in EP application No. 09150947.1 (applicant protocol number PH 012841), from which the priority is claimed and which is incorporated herein by reference.

The received compressed transmission comprises 3D information that allows the composition and rendering both in the stereoscopic and in the auto-stereoscopic display, that is, the compressed transmission comprises a left and a right video frame, and depth information (D), transparency ( T) and occlusion (O) to allow rendering based on 2D + depth information. Next, the

information depth (D), of transparency (T) and occlusion (0) will be abbreviated how DOT. . THE presence so much in Stereo as of DOT as

Compressed streams allow for composition and rendering that is optimized by the viewer, depending on the type and size of the viewer, while the composition is still controlled by the content author.

The following components are transmitted on the display interface:

- decoded video data (not mixed with

PG and IG / BD-J)

23/40 __ - graphical presentation data (PG)

- interactive graphic data (IGT'õtT graphic data generated by BD-Java (BD-J)

- decoded DOT video

- Presentation graphics DOT (PG)

- interactive graphics (IG) or graphics generated by BD-Java (BD-J)

Figures 4 and 5 show schematically frame units to be sent on the video interface.

The output stage sends, on the interface (preferably HDMI), units of 6 frames organized as follows:

Table 1: The YUV components of the left video (L) and the DOT video are combined in a 24 Hz RGB output frame, components, as illustrated in the upper drawing of figure 9. YUV designates, as is usual in the field of video, the standard luminance (Y) and chroma (UV) components.

Table 2: The right video (R) is sent unchanged, preferably at 24 Hz as shown in the lower drawing of Figure 9

Table 3: The color of the PC (PG-C) is sent unchanged, as RGB components, preferably at 24 Hz.

Table 4: Color PG transparency is copied on a separate DOT plane of graphics and combined with the depth and occlusion components of 960x540 and depth of occlusion (OD) for various planes, as shown in the upper drawing of Figure 10.

Table 5: The BD-J / IG (C) color is sent unchanged, preferably at 24 Hz.

Table 6: Color BD-J / IG transparency is copied into a separate output plane from graphics DOT and combined with the 960x540 depth and occlusion components

24/40 • depth of occlusion (OD), as shown in the lower drawing of Figure 10. ---------- Figure 6 shows schematically the time output of frames on the video interface, according to preferred embodiment of the invention. Here, components are sent in 24Hz components time-interleaved on the HDMI interface at an interface frequency of 144Hz for the display.

The advantages of this 3D video format:

- The flexible 3D stereo format of maximum resolution + DOT and the HDMI 3D output allows for enhanced 3D video (variable baseline depending on the size of the display) and the possibility of improved 3D graphics (less graphic restrictions, 3D TV OSD ) for various 3D displays (stereo and auto-stereoscopic).

No compromise in quality, flexibility of authorship and minimal cost for reproduction hardware. Compositing and rendering are performed on the 3D display.

- The highest video interface speed required is being set on HDMI for 4k2k formats and can now be implemented with dual-link HDMI. The dual-link HDMI also supports higher frame rates, for example, 30 Hz etc.

The 3D transfer information indicator can comprise layer signaling parameters for the additional video layer. The parameters can be indicative of at least one of:

- additional layer type and / or format;

- location of the display of the additional layer in relation to the display of the main video;

- display size of the additional layer;

time of appearance, disappearance and / or duration of the display of the additional layer;

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------------- Additional 3D display settings or 3D display parameters. '------ Other detailed examples are discussed below.

Figure 3 shows the playback device and the display combination device. The player 10 reads the capabilities of the display 13 and adjusts the video format and timing parameters to send the higher resolution video, spatially and also temporally, that the display can support. In practice, a standard called EDID is used. Extended Display Identification Data (EDID) is a data structure provided with a display device to describe its capabilities for an image source, for example, a graphics card. This standard allows a modern personal computer to know what type of monitor is connected. EDID is defined by a standard published by the Video Electronics Standards Association (VESA). See also the VESA DisplayPort Standard, Version 1, Revision la, January 11, 2008 available at http://www.vesa.org/.

EDID includes the name of the manufacturer, the type of product, type of match or filter, timings supported by the display, display size, luminance data and (for digital displays only) pixel mapping data. The channel for transmitting the EDID from the display to the graphics card is generally the so-called I ² C bus. The combination of EDID and I ² C is called Display Data Channel version 2, or DDC2. The two differ from the original VESA DDC, which uses a different serial format. The EDID is usually stored on the monitor in a memory device called a serial PROM (programmable read-only memory) or an EEPROM (electrically erasable PROM) that is compatible with the 1 ² C bus.

The playback device sends an E-EDID request

26/40 '------------------ .jvisor ___ on the DDC2 channel. The display responds by sending the E-EDID information. The player will determine the best format and start broadcasting on the video channel. In older types, the display continuously sends the E-EDID information on the channel

DDC. No requests are sent. To further define the video format in use on the interface, another organization (Consumer Electronics Association; CEA) has defined several additional restrictions and extensions to E-EDID to make it more suitable for use with TV displays. The HDMI 10 standard (mentioned above), in addition to specifying EEDID requirements, supports identification codes and related timing information for many different video formats. For example, the CEA 861-D standard is adopted in the HDMI interface standard. HDMI defines the physical connection and supports the 15 CEA 861-D and VESA E-EDID standards to work with higher level signaling. The VESA E-EDID standard allows the display to indicate whether it supports stereoscopic video transmission and in which format. It should be noted that this information about the capabilities of the display goes back to the generation device. The known VESA standards do not define any advanced 3D information that controls 3D processing on the display.

In one configuration, the 3D transfer information in the 3D display signal is transferred asynchronously, that is, as a separate package in a data transmission, while identifying the respective frame to which it refers. The package can include other data to precisely synchronize the frame with the video, and can be inserted at an appropriate time in the gaps between successive video frames. In a practical configuration, 3D transfer information is packaged within the HDMI Data Islands.

An example of including information about

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- transfer.ferencia3_Dem JApportable Video Information (AVI) as defined in HDMI in a ~ audio ~ e-video (AV) data transmission is as follows. The AVI is carried in the AV transmission from the generation device to a Digital TV Monitor (DTV) as an Information Board. If the generation device supports the transmission of Auxiliary Video Information (AVI) and it determines that the DTV Monitor is capable of receiving this information, it must send the AVI to the DTV Monitor once per VSYNC period. The data applies to the next full frame of video data.

In the following section, a brief description of the HMDI signaling will be presented. On HDMI, a device with an HDMI output is known as a source, whereas a device with an HDMI input is known as a deposit. An InfoFrame is a data structure defined in CEA-861-D that is designed to carry a variety of auxiliary data items related to audio or video transmissions or the generating device and is taken from Source to Deposit via HDMI . A Video Field is the period from a VSYNC active margin to the next VSYNC active margin. A video format is sufficiently defined so that when the monitor is received, the monitor has enough information to properly display the video to the user. The definition of each format includes a Video Format Timing, the aspect ratio of the figure and a colorimetric space. 0 Video Format Timing is the waveform associated with a video format. Note that a specific Video Format Timing can be associated with more than one Video Format (for example, 720X480p @ 4: 3 and 720X480p @ 16: 9).

HDMI includes three separate communications channels: TMDS, DDC and the optional CEC. TMDS is used to carry all audio and video data, as well as data

28/40 ancillary data, including AVI and Audio InfoFrames that ______ desc.re.em_as_as_transmisiões______audi.o_ and__video .._ O_canal__________

DDC is used by an HDMI Source to determine the Deposit's capabilities and characteristics by reading the E-EDID data structure.

HDMI Sources are expected to read the Deposit E-EDID and deliver only the audio and video formats that are supported by the Deposit. In addition, HDMI Deposits are expected to detect InfoFrames and properly process incoming audio and video data.

CEC channel is optionally used for higher level user functions, for example, automatic configuration tasks or tasks typically related to the use of infrared remote control.

An HDMI link operates in one of three modes:

Video Data, Data Island Period and Control Period. During the Video Data Period, the active pixels of an active video line are transmitted. During the Data Island Period, audio and auxiliary data are transmitted using a series of packets. The Control Period is used when no video, audio or auxiliary data needs to be transmitted. A Control Period is required between any two periods that are not Control Periods.

Table 1 illustrates packet types on an HDMI data island.

Type value Package Package Type 0x00 Null 0x01 Audio Clock Regeneration (N / CTS)

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0x02 Audio Sample (compressed L-PCM and IEC 61937 formats) 0x03 General Control 0x04 ACP Package 0x05 ISRC1 package 0x06 ISRC2 package 0x07 Audio Sample Pack One Bit 0x08 DST Audio Package 0x09 High Bit Rate (HBR) Audio Transmission Package (IEC 61937) OxOA Gamut Metadata Pack 0x80 + Type InfoFrame InfoFrame package 0x81 Supplier-specific InfoFrame 0x82 InfoFrame AVI * 0x83 InfoFrame Product Descriptor Source 0x84 Audio InfoFrame * 0x85 MPEG Source InfoFrame

It was identified by the inventors that the present

Infoframe Pack, painting of information AVI etc no are suitable to work, the transmission of Dice in video in 3D. 5 So general, the transmission of Dice in video in

3D can be characterized by 3 parameters:

- VIC (pixel repetition rate) from table 8.7 in the HDMI specification, for example, 1920x1080p @ 60Hz.

- number of frames in a frame unit of a single 3D image.

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N = 1 for monoscopic

--------- N = 2 — para-es-téreo e.-v £ video - tpr.ofun.didade ____

N = 3 for video + depth + graphics

N = 4 for MVD @ M = 2, etc.

N = 6 for the unit defined with reference to Figures 4 to 6

- the format: multiplexing of channels

- switching frames

- field alternation

- line switch

- side by side

- checker board, etc.

Figure 8 shows horizontal and vertical gaps and the signaling for a 3D + DOT format @ 1920 pixels. The Figure shows a multiplexing scheme for switching frame multiplexing. In example 5, the frames indicated by Vactive / 5 constitute the 3D image of the 3D + DOT format, which frames are sequentially arranged in the unit between the vertical synchronization VSYNC pulses of the 3D signal, indicated by Vfreq. The vertical synchronization pulses indicate the Vactive Video Data Period starting after the vertical Vblank gaps, during which the frames are sequentially arranged. Similarly, HSYNC pulses of horizontal gaps indicate the Hactive line period starting after the horizontal Hblank gaps. Therefore, the multiplexing scheme of switching frames indicates said number of frames being sequentially arranged within said Video Data Period.

Figure 9 shows horizontal and vertical gaps and signaling for a 720 pixel 3D + DOT format sent as 1920progressive at 30Hz. The Figure shows a multiplexing scheme for side-by-side frame multiplexing. In example 5, the tables indicated by Hactive / 5 constitute the

31/40 3D image of the 3D + DOT format, these frames that are arranged ___ side a. hand, on the unit_between the wrists. VSYNC of vertical synchronization of the 3D signal, indicated by Vfreq. The vertical sync pulses indicate the Vactive Video Data Period beginning after the Vblank vertical gaps, during which the frames are arranged side by side. Similarly, HSYNC pulses of horizontal gaps indicate the Hactive line period starting after the horizontal Hblank gaps. Therefore, the frame-by-side multiplexing scheme indicates that said number of frames being sequentially arranged within said Video Data Period.

For maximum flexibility, according to the invention, the parameters of the multiplexing scheme above must be transmitted in three separate fields.

In a configuration of the invention, these are sent in Vendor-specific AVI and / or HDMI InfoFrames.

In the following detailed configuration in the case of HDMI, interfaces will be presented:

Table 2 describes the relevant bytes of the InfoFrame package according to the preferred configuration of the invention.

Here, HDMI_VIC0 ... HDMI_VIC7 describe the Video Format Identification Code. When transmitting any video format defined in this section, an HDMI Source must define the HDMI_VIC field for the Video Code for that format.

Here, HDMI_3D_FMT0 ... HDMI_3D_FMT describe the 3D Format Code. When transmitting any video format defined in this section, an HDMI Source must define the HDMI_3D_Format field for the Video Code for that format.

Table 2

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Byte 7654321 0 Package- No. _____________ _____________ PBO IEEE 24bit Record Identifier ((0x000C03)) (Least Significant Byte first) PB1 PB2 PB3 HDMI_ VIC7 HDMI_ VIC6 HDMI _VIC 5 HDMI_VI C4 HDMI_ VIC3 HDMI_ VIC2 HDMI_ VIC1 HDMI_VIC0 PB4 HDMI_ 3D_FM T7 HDMI_ 3D_FM T6 HDMI _3D_ FMT 5 HDMI_3D _FMT 4 HDMI_ 3D_FM T 3 HDMI_ 3D_FM T 2 HDMI_ 3D_FM T 1 HDMI_3D_F MT 0 PB5 ~ (Lv-4) Reserved (0)

According to the invention, additional values of

Format timing in video, what are identified hair numbers HDMI_VIC, are defined for streaming in 3D (stereoscopic). 5 The following formats in video are used to

3D broadcast. The left and right picture of each of the audience's eyes can be distinguished exclusively using the video format definition in this section, so that any additional information package is not required. Table 3 shows the HDMI_VIC value that is described in the related EDID and InfoFrame.

Table 3 HDMI_VIC for 3D transmission

(Hz) HDMI_VIC Hactive Vactive V freq No. of channels description 1 1920 1080 60 1 1080Í FullHD 60Hz 2 1920 1080 50 1 1080Í FullHD 50Hz

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3 1920 1080 60 1 1080p FullHD 4 1920 1080 50 1 1080p 50Hz FullHD 5 1920 1080 24 1 1080p 24Hz FullHD 6 1920 1080 60 2 1080Í 60Hz FullHD 7 1920 1080 50 2 1080Í 50Hz FullHD 8 1920 1080 60 2 1080p 60Hz FullHD 9 1920 1080 50 2 1080p 50Hz FullHD 10 1920 1080 24 2 1080p 24Hz FullHD 11 1920 1080 60 3 1080i 60Hz FullHD etc. etc. etc. etc. etc. etc.

According to the invention, the proprietary HDMI multiplexing format of 3D channels is identified by the numbers HDMI_3D_FMT, for example being defined in table 4.

For 3D transmission (stereoscopic)

The following 3D formats are used for 3D transmission. The format of the multiplexing of the information in the channels of a 3D broadcast can be distinguished exclusively using the 3D format definition in this section, so that any additional information package is not necessary. Table 4 shows the value of HDMI_3D_Format which is described related.

in EDID and InfoFrame

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Table 4 HDMI_3D_FMT for 3D transmission

HDMI_3D code FMT description 1 Switching frames 2 Field alternation 3 Line switch 4 Side by side 5 2D + D 6 2D + D + gfxl 7 L + DL + R + DR

Table 5 HDMI_VIC for transmission with extended resolution

(Hz) (MHz) HDMI_VI Ç Hactive Vactive Hblank Vblank V Freq Pixel Freq Description dog 14 1920 5400 280 45 24 287.4 96 1080p FullHD 24Hz DOT 15 6400 720 370 30 60 304.6 50 12 8 0p HD 60Hz DOT 16 9600 1080 280 45 30 333.4 50 1080p FullHD 30Hz DOT

According to the invention, a reproduction device is capable of sending 3D Metadata from the Source to the Deposit (among others):

- Content format

- 2D / 3D signaling in real time

- Synchronization

- Recommended field of view

35/40

- Caption information

"According to -a-- invention," Metadata "additional 3D content can be included in the 3D video data being transmitted, the metadata being preferably aligned to the SMPTE 3D master format.

Several options are listed; metadata can be included in one of the following:

- 3D InfoFrame (CEA) type,

- Infoframe AVI,

- Supplier Specific Infoframe (VSIF), CEC ,.

In the following section, specific configurations for sending stereo information or the case in which the units comprise two frames will be introduced.

It is proposed to use black stripe information in the AVI-Info frames to accommodate the frame type synchronization indicator, that is, to the left-right that signals and adds information for the proper rendering of the 3D video on the display. The AVI-info frame is a block of data that is sent at least every two fields. For this reason, it is the only information board that can transmit signaling in a frame, which is a requirement if it should be used for synchronizing the stereoscopic video signal. The advantage of this solution over other solutions that are based on relative signaling or that are based on vendor-specific information boards is that it is compatible with current HDMI chipsets and provides accurate frame synchronization and sufficient space (8 bytes) for signaling.

In an alternative configuration, it is proposed to use preamble bits as defined in HDMI to signal that the video data that follows is a left or right video frame. Chapter 5.2.1.1 on HDMI defines that immediately before each Video Data Period or

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Data Island Period there is the Preamble. This is a sequence of òitb — characters — of — Control — identical__that ___ indicates whether the data period en route is a Video Data Period or a Data Island. The CTLO, CTL1, CTL2 5 and CTL3 values indicate the type of data period that follows. The other Control signals, HSYNC and VSYNC, may vary during this sequence. The preamble is currently 4 bits, CTLO, CTL1 CLT3 and CTL4. At the moment, only 1000 and 1010 as values are used. For example, the values 1100 or 1001 10 can now be set to indicate whether the video data contains a left or a right video frame, or alternatively frames that contain image and / or depth information. Also, the preamble bits can only indicate a type of 3D frame or a first 3D frame of a sequence, whereas another discrimination of frame types can be according to a type of frame synchronization sequence defined by another one. data frame. Also, the HSYNC and VSYNC signaling can be adapted to contain at least part of the 20 frame synchronization type, that is, whether a frame is a left or right video frame. HSYNC is willing to precede video data from a left frame and VSYNC a right frame from video information. The same principle can be applied to other types of frame, such as 2D image and depth information.

Figure 10 shows a table of an extended AVI-info frame with a frame type synchronization indicator. The AVI-info frame is defined by the CEA and is adopted by the HDMI standard and other video transmission standards 30 to provide frame signaling about color and chroma, overscan and underscan sampling and aspect ratio. Additional information has been added to configure the frame type synchronization indicator, as follows.

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The last bit of data byte 1; F17 and the last data byte bit 4; F47 are reserved in the standard of — table _____

AVI-info. In a frame type synchronization indicator configuration, these are used to indicate the presence of stereoscopic signaling in the black stripe information. The black stripe information is usually contained in Data bytes 6 through 13. Bytes 14-27 are normally reserved on HDMI and therefore cannot be correctly transmitted with current hardware. Therefore, these fields are used to provide less critical OSD location information. The table syntax is as follows. If F17 is set to (= 1), then data bytes up to 13 contain 3D parameter information. The default case is when F17 is not set to (= 0), which means that there is no 3D parameter information.

Data bytes 12 to 19 indicate the location of the OSD / caption layer. The additional layer can be smaller than the main video layer, and is positioned based on the location data of bytes 12-19. This allows the 3D display to perform specific rendering in the area of the screen indicated by the frame type synchronization indicator. The frame type synchronization indicator can also include synchronization timing information to indicate when the subtitles / OSD information should appear and / or disappear, that is, in data bytes 20-27 called Rendering parameters in Figure 10 .

Figure 11 shows a table of 3D video formats. Each of the values in the left column indicates a specific video format that has different frame types. The selected value is included in the frame synchronization indicator, for example, Data Byte 7 in the Table in Figure 10. Data Byte 7 describes the stereoscopic video format that the source (player)

38/40 is broadcasting. The Table in Figure 11 lists some of the possible values. The value Õ ~ ind “icáT que ~ õ qaardro ^- aasoerado-é-2D; this is useful when transmitting 2D video segments during a 3D title. The display device (3D-TV) can adapt its internal image processing for this 3D video format change, for example, disable the upward conversion in the case of sequential frame format.

Figure 12 shows the frame sync signal. The sync signal can be included in the frame sync indicator, for example, Data Byte 8 in Figure 10. Data Byte 8 carries the stereo sync signal, while Figure 12 shows the format of the sync signal. The synchronization signal indicates, with the video format, the content of the video frame.

The values of Data Bytes 9 and 10 in Figure 10 depend on the video format. For example, for (auto-) stereoscopic video, they indicate the maximum and minimum parallax of the video content. Alternatively, they can indicate the compensation factor and scale of depth information. In the case of a requirement for greater bit precision (for example, depth of 10 bits), additional registers could be used to store the smaller bits.

Figure 13 shows the values for additional video layers. The video format can be extended, allowing frames to be included separately for additional layers such as captions or menus (Data on OSD Screen) in the 3D video signal. In Figure 4, Data Byte 11 can indicate the presence of subtitles or OSD layer. Figure 13 shows several video format parameter values to indicate additional layers. The other bytes 20-27 in Figure 10 can be used to provide specific parameters to indicate information for scaled depth and information

39/40 occlusion related to 3D viewers.

It should be noted that the invention can be implemented in hardware and / or software, using programmable components. An implementation method of the invention has the processing steps corresponding to the transfer of 3D image data explained with reference to Figure 1. Although the invention has been explained mainly by configurations using optical record holders or the internet, the invention is also suitable for any image interface environment, for example, a personal computer [PC] or PC display with 3D media center 3D coupled to a wireless 3D display device.

The invention can be summarized as follows: A three-dimensional (3D) image data transfer system is described. A 3D generation device provides a 3D display signal for a display via a high-speed digital interface, for example, HDMI. The 3D display signal comprises a sequence of frames that make up the 3D image data according to a 3D video transfer format. The frame sequence comprises units, each unit corresponding to frames that comprise video information that must be composed and displayed as a 3D image; each frame has a data structure to represent a sequence of digital image pixel data, and represents a partial 3D data structure. The 3D generation device includes 3D transfer information comprising at least information about the number of video frames in a unit to be composed into a single 3D image in the 3D display signal. The display detects the 3D transfer information and generates the display control signals depending on the 3D transfer information. 3D transfer information

40/40 preferably also comprise information about the multiplexing scheme for 'ãTmürtipIéxãõõ of frames in the 3D display signal and more preferably comprise information about a pixel size and a 5 frequency rate for frames.

It is noted that in this document the word 'comprising' does not exclude the presence of elements or steps other than those listed and the words 'one' or 'one' before an element does not exclude the presence of several of these 10 elements, than any signs references do not limit the scope of the claims, that the invention can be implemented by means of both hardware and software, and that several 'means' or 'units' can be represented by the same item of hardware or software, and a processor can perform the function of one or more units, possibly in cooperation with hardware elements. In addition, the invention is not limited to configurations and is based on each and every new feature or combination of features described above.

Claims (8)

CLAIMS __________] _____ METHOD — OF DATA TRANSFER — OF THREE-DIMENSIONAL IMAGE [3D], characterized by understanding, in a 3D generation device, - processing of original image data to generate a 3D display signal, the 3D display signal comprising a sequence of frames that constitute the 3D image data according to a 3D video transfer format, the video format in 3D comprising a period of video data during which active video pixels are transmitted and a period of data island during which audio and auxiliary data are transmitted using a series of packages, the packages including an information board package , and - sending the 3D display signal; and, on a 3D display device, - reception of the 3D display signal, and - 3D display signal processing to generate display control signals to render 3D image data on a 3D display, the frame sequence comprising units, the unit being a period from a vertical sync signal to the next signal vertical synchronization, each unit corresponding to a number of frames arranged according to a multiplexing scheme, the number of frames comprising video information that must be composed and displayed as a 3 D image; - each frame in the unit has a data structure to represent a sequence of digital image pixel data, and each type of frame represents the partial 3D data structure, and in which the method comprises, in the 3D generation device, - including 3D transfer information in a 20 - frame multiplexing side by side, frame multiplexing side by side indicating said number of frames being arranged side by side within said period of video data; - 2D frame and depth multiplexing; 25 - 2D multiplexing, of depth, of graphs and of graphical table and of depth. 9. 3D DISPLAY DEVICE, characterized by comprising: - a 3D display (17) for displaying 3D image data, 2. METHOD, according to claim 1, characterized in that in the information on the multiplexing scheme, the group of multiplexing schemes also comprises at least one among: - field alternation multiplexing; - line switching multiplexing; side-by-side frame multiplexing, side-by-side frame multiplexing indicating said number of frames being arranged side by side within said video data period; - 2D frame and depth multiplexing; - 2D multiplexing, of depth, of graphs and of graphical table and of depth. 2/8 _ .pa.cote__de additional information frame, the 3D transfer information comprising parts ~ 'information ~ information - about__ the multiplexing scheme including the number of video frames in a unit to be composed into a single 3D image on the signal 3D display, the multiplexing scheme being selected from the group of multiplexing schemes comprising at least the frame switching multiplexing, the frame switching indicating said number of frames being sequentially arranged within said video data period; and - said generation of the display control signals is performed depending on the 3D transfer information. 30 - input interface means (14) for receiving a 3D display signal, the 3D display signal comprising frames constituting the 3D image data according to a 3D video transfer format, the 3/8 -carac.terizado_in which 3D transfer information is included in the AVI InfoFrame. ____ 3. METHOD according to claim 21, characterized in that the 3D transfer information includes information about a pixel size and a frequency rate for frames. 4/8 -------- 3D de_-transfer comprising at least information about the unique multiplexing scheme ~ -o — number-_ of__ video frames in a unit to be composed into a single 3D image on the 3D display signal, the scheme 4. METHOD, according to claim 3, characterized in that the video transfer format is HDMI. 5/8 - _jde video ^ format in 3D comprising a period of video data during which video pixels — active - .. are transmitted and a period of data island during which audio and auxiliary data are transmitted using a series of packages, packages including an information board package, and - processing means (18) for generating display control signals to render the 3D image data on the 3D display, - each frame has a data structure to represent a sequence of digital image pixel data, and each type of frame represents a partial 3D data structure, and the sequence of frames comprising units, the unit being a period from a vertical synchronization until the next vertical synchronization signal, each unit corresponding to a number of frames arranged according to a multiplexing scheme, the number of frames that comprise for video information that must be composed and displayed as a 3D image; - where 3D transfer information in an additional information frame package comprises at least information about the multiplexing scheme including the number of video frames in a unit to be composed into a single 3D image in the 3D display signal, multiplexing scheme being selected from the group of multiplexing schemes comprising at least one frame switching multiplexing, the frame switching indicating said number of frames being sequentially arranged within said video data period; and - the processing means (18) are arranged to generate the display control signals depending on the 3D transfer information. 5 multiplexing being selected from the group of multiplexing schemes comprising at least the frame switching multiplexing, the frame switching indicating said number of frames being sequentially arranged within said video data period; 10 to, on the display device, generate display control signals depending on the 3D transfer information. 8. 3D GENERATION DEVICE, according to claim 7, characterized in that the interface means Output 15 are adapted to provide further information about the multiplexing scheme by the group of multiplexing schemes further comprising at least one of: - field alternation multiplexing; - line switching multiplexing; 5. METHOD, according to claim 4, 6/8 10. 3D DISPLAY DEVICE, according to - claim - 9, --- characterized in that the processing means ----- (18) are arranged to generate the display control signals depending on other information about the multiplexing scheme by the group of multiplexing schemes comprising still at least one of: - field alternation multiplexing; - line switching multiplexing; side-by-side frame multiplexing, side-by-side frame multiplexing indicating said number of frames being arranged side by side within said video data period; - 2D frame and depth multiplexing; - 2D multiplexing, of depth, of graphs and of graphical table and of depth. 11. DISPLAY DEVICE IN 3D, in a deal with The claim 10, characterized in that O Format in transfer video is HDMI. 12. DISPLAY DEVICE IN 3D, in a deal with The claim 11, characterized in that the information in transfer 3D are included in AVI InfoFrame. 13. DISPLAY DEVICE IN 3D, in a deal with The claim 11, characterized in that the information in transfer 3D are included in a InfoFrame Specific of Provider. 14. 3D DISPLAY SIGN for transfer in three-dimensional image data [3d] for a 3D display device, characterized by comprising a sequence of frames that constitute the 3D image data according to a 3D video transfer format, the 3D video format comprising a period video data during which active video pixels are transmitted and a data island period during which audio data and 6. METHOD, according to claim 4, characterized in that the 3D transfer information is included in a supplier-specific InfoFrame. Auxiliary 7/8 are transmitted using a series of packets, the packets including a packet of. frame _.of_information, _______ the sequence of frames comprising units, the unit being a period from a vertical sync signal to the next vertical sync signal, each unit corresponding to a number of frames arranged according to a multiplexing scheme, the number of which comprise video information for video information that must be composed and displayed as a 3D image; on what - each frame has a data structure to represent a sequence of digital image pixel data, and each type of frame represents a partial 3D data structure, where the 3D display signal comprises - display signal in 3D transfer information in an additional information frame package, the 3D transfer information comprising at least information about the multiplexing scheme including the number of video frames in a unit to be composed into a single 3D image in the 3D display signal, the multiplexing scheme being selected from the group of multiplexing schemes comprising at least the frame switching multiplexing, the frame switching indicating said number of frames being sequentially arranged within said video data period ; to generate display control signals on the display device depending on the 3D transfer information. 15. 3D DISPLAY SIGN, according to claim 14, characterized in that, in the information on the multiplexing scheme, the group of multiplexing schemes also comprises at least one of: - field alternation multiplexing; 7. 3D GENERATION DEVICE FOR TRANSFERRING THREE-DIMENSIONAL IMAGE DATA [3D] TO A 3D DISPLAY DEVICE, characterized by comprising: - generating means (52) for processing original image data to generate a 3D display signal (56), the 3D display signal comprising a sequence of frames constituting the 3D image data according to a format of 3D video transfer, the 3D video format comprising a period of video data during which active video pixels are transmitted and a data island period during which audio and auxiliary data are transmitted using a series of packages, packages including an information board package, and - output interface means (12) for sending the 3D display signal, each frame has a data structure to represent a sequence of digital image pixel data, and each type of frame represents a partial 3D data structure, the sequence of frames comprising units, the unit being a period from a vertical sync signal to the next vertical sync signal, each unit corresponding to a number of frames arranged according to a multiplexing scheme, the number of frames comprising information video to video information that must be composed and displayed as a 3D image; wherein the output interface means is adapted to transmit 3D transfer information in an additional information frame package, the information 8/8 - line switching multiplexing; --------------- frame - side - side - by - side multiplexing, - a. frame multiplexing side by side indicating said number of frames being arranged side by side within said video data period 5; - 2D frame and depth multiplexing; - 2D multiplexing, of depth, of graphs and of graphical table and of depth.